You should not be surprised. This data provides the government a crowd-sourced, fully id'd, and up-to-date behavioral profile of what people do and with whom. And since they're in FIVE EYES that means Canada, New Zealand, the US, and the UK also have all that data.
How did the NSO scientists know this spot would appear? Their prediction came via a technique developed at NSO in the 1990s, known as helioseismology. It’s a way of “listening” to changing sound waves from the sun’s interior.